Bug with configuration assistant

[Malycia]

• [ x] I've read and understood the contribution guidelines.
• [ x] I've searched for any related issues and avoided creating a duplicate issue.

Please give us a description of what happened.

When I try to configure my Yoast SEO tool on wordpress I receive an error message. See printscreen above. I installed Health Check plug-in and I reproduced it in troubleshooting mode but I had the same results and the same error message. I just can not access the configuration assistant. In the Console I see a 403 error message:

Please describe what you expected to happen and why.

I expected to be able to use the assistant

How can we reproduce this behavior?

1. install the plug-in and click on the link "assistant de configuration"
2. choose "configurez yoast SEO"
3. be redirected on the error page (printscreen above)

Technical info

• WordPress version: WordPress 4.9.8 avec le thème Mesmerize PRO.
• Yoast SEO version: 8.4
• If relevant, which editor is affected (or editors):
• [ x] Classic Editor
• [ ] Gutenberg
• [ ] Classic Editor plugin

• Which browser is affected (or browsers):

• [ ] IE11

• [ ] Edge

• [ x] Chrome

• [ x] Firefox

• [ ] Safari

• Relevant plugins in case of a bug:

• Tested with theme: mesmerize PRO but also with the troubleshooting mode of Health Check

[CarolineGeven]

Thanks for reporting this issue. However, we're unable to reproduce this.

Sometimes strange behavior may be caused by a plugin or theme conflict. The fastest way to rule out conflicts is to deactivate all non-Yoast plugins and switch to a standard theme like Twenty Sixteen. If this resolves the issue, you have a conflict and should activate one plugin at a time until you locate the conflict. Finally, after all plugins are active, switch to your theme. This will narrow down the conflict to a specific plugin or a theme conflict.

If you are unfamiliar with checking for conflicts, we wrote a small guide that will walk you through the steps. You can find it here: How to Check For Plugin Conflicts

We understand if you wouldn't want to deactivate your plugins and switch themes on a production site, so it may be preferable that you set up a staging environment for your tests.

If you're not familiar with a staging site, this article will help you get started: http://www.wpbeginner.com/wp-tutorials/how-to-create-staging-environment-for-a-wordpress-site/

Can you please inform us of the results?

[CarolineGeven]

Closing due to inactivity. If this issue is still relevant, please open a new issue with the requested information. Thanks for your understanding.